NEW YORK ( TheStreet) -- These stocks hit 52-week highs Wednesday: Select Comfort ( SCSS), Continental Resources ( CLR), Total System Services ( TSS) and Silicon Laboratories ( SLAB). Each of these stocks received a buy rating from TheStreet Ratings. Select Comfort The company creates and sells beds and related products. Select Comfort announced earlier in January that it was launching a new memory foam mattress called "m7." "While we note that this isn't the company's first memory foam product (p7 is currently available), its gel infused technology is a step forward in product innovation and demonstrates the company's efforts to increase ASP," Piper Jaffray analysts wrote on Jan. 13. The Piper Jaffray analysts also noted the mattresses should be in stores by early February. Shares of Select Comfort hit a 52-week high Wednesday of $24.86. The stock's 52-week low is $9.77. Select Comfort gets a B- grade from TheStreet Ratings with a price target of $31.36. The stock has risen 13.79% year to date.